diff --git a/package-lock.json b/package-lock.json
index e14abac..d62c614 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -35,7 +35,7 @@
         "react-scripts": "^3.4.0",
         "ts-jest": "^24.0.2",
         "tslint": "^6.1.2",
-        "typescript": "^3.9.6"
+        "typescript": "^4.9.3"
       }
     },
     "node_modules/@babel/code-frame": {
@@ -18516,9 +18516,9 @@
       "dev": true
     },
     "node_modules/typescript": {
-      "version": "3.9.6",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-3.9.6.tgz",
-      "integrity": "sha512-Pspx3oKAPJtjNwE92YS05HQoY7z2SFyOpHo9MqJor3BXAGNaPUs83CuVp9VISFkSjyRfiTpmKuAYGJB7S7hOxw==",
+      "version": "4.9.3",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.9.3.tgz",
+      "integrity": "sha512-CIfGzTelbKNEnLpLdGFgdyKhG23CKdKgQPOBc+OUNrkJ2vr+KSzsSV5kq5iWhEQbok+quxgGzrAtGWCyU7tHnA==",
       "dev": true,
       "bin": {
         "tsc": "bin/tsc",
@@ -35426,9 +35426,9 @@
       "dev": true
     },
     "typescript": {
-      "version": "3.9.6",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-3.9.6.tgz",
-      "integrity": "sha512-Pspx3oKAPJtjNwE92YS05HQoY7z2SFyOpHo9MqJor3BXAGNaPUs83CuVp9VISFkSjyRfiTpmKuAYGJB7S7hOxw==",
+      "version": "4.9.3",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.9.3.tgz",
+      "integrity": "sha512-CIfGzTelbKNEnLpLdGFgdyKhG23CKdKgQPOBc+OUNrkJ2vr+KSzsSV5kq5iWhEQbok+quxgGzrAtGWCyU7tHnA==",
       "dev": true
     },
     "unicode-canonical-property-names-ecmascript": {
diff --git a/package.json b/package.json
index 0d9a878..c76b5ef 100644
--- a/package.json
+++ b/package.json
@@ -21,7 +21,7 @@
     "react-scripts": "^3.4.0",
     "ts-jest": "^24.0.2",
     "tslint": "^6.1.2",
-    "typescript": "^3.9.6"
+    "typescript": "^4.9.3"
   },
   "browserslist": {
     "production": [